Patent US3514463A successfully refreshed from Google Patents.
US3514463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5,9-diethyl benzomorphan derivatives
Assignee: Merck and Co Inc
•
Filing: 1967-04-13
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Granted: 1970-05-26
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Expires: 1987-04-13
Abstract
No abstract record available.
Inventors
- 👤 Franklin M Robinson
- 👤 Paul S Anderson
- 👤 James A Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:12
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/22; C07D221/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2259513A
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US2369158A
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US2388657A
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US2713574A
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GB921547A
Cited
US3372165A
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US3351626A
Cited
US3250678A
Cited
US3320265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |